Copper can react with acidic liquids like citrus juices, vinegar, and certain alcohols, leading to the leaching of copper into the drink. Ingesting high levels of copper can be toxic, causing symptoms like nausea, vomiting, and diarrhea, and in severe cases, can lead to liver or kidney damage.
I use lead for making my wine. My father used lead, and his father before him. There is nothing sweeter than wine from the lead pot, and I know not of a better cup than those of pewter.
JK I love shrimp and have a ton. A while ago I used to fear copper too only because I once dosed a fertilizer with it and all my shrimp started to turn black. When I put them in new water it saved them though.